JWST APT Observation Templates
JWST observations of a target are planned in APT using an observation template for a JWST instrument observing mode.
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Observations are specified in the Astronomers Proposal Tool, APT, by selecting a target and an instrument observing mode. Each observing mode has a corresponding APT template that allows the user to specify parameters appropriate to that mode of operation. A JWST observing proposal is a set of observations specified by filling out one or more of these templates in APT. A proposal may call for multiple templates from any of the 4 JWST instruments, depending on the science goals of the program. Separate observations must be specified when using different JWST instrument observing modes for a given target, except when used in coordinated science parallels.
MIRI APT templates
NIRCam APT templates
NIRSpec APT templates
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NIRSpec APT Templates
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NIRSpec Multi-Object Spectroscopy APT Template
- • NIRSpec MSA Planning Tool, MPT
- NIRSpec MPT - Catalogs
- • NIRSpec MPT - Planner
- • NIRSpec MPT - Plans
- • NIRSpec MPT - MOS and MSATA Program Updates
- • NIRSpec MPT - Computational Performance
- • Custom MOS Observations using the MSA Configuration Editor
- • Long Slit MOS Observations
- • MSA Target Info File
- • NIRSpec MPT - Parameter Space
- • NIRSpec IFU Spectroscopy APT Template
- • NIRSpec Fixed Slit Spectroscopy APT Template
- • NIRSpec Bright Object Time-Series APT Template
- • NIRSpec FS and IFU Mosaic APT Guide
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NIRSpec Multi-Object Spectroscopy APT Template
NIRISS APT templates
Creating coordinated science parallel observations
Coordinated parallel observations can be specified in APT for the combinations of templates shown in the table below. Such observations are defined within the same APT proposal as the primary observations. More information about specifying coordinated parallel observations is provided in the APT Coordinated Parallel Observations article.
Table 1 shows the observing template combinations that are approved for use in Cycle 4 of JWST operations. Support for other modes may be added in future cycles, and will be announced when they become available.
Table 1. Compatible observing template combinations
| Ref no. | Template combination | Comments |
|---|---|---|
| 1 | MIRI Imaging – NIRCam Imaging | Either can be primary |
| 2 | NIRCam Imaging – NIRISS WFSS | Either can be primary |
| 3 | MIRI Imaging – NIRISS WFSS | Either can be primary |
| 4 | NIRSpec MOS – NIRCam Imaging | NIRSpec MOS must be primary |
| 5 | NIRCam Imaging – NIRISS Imaging | NIRCam must be primary |
| 6 | NIRCam WFSS – MIRI Imaging | NIRCam must be primary |
| 7 | NIRCam WFSS - NIRISS Imaging | NIRCam must be primary |
| 8 | NIRSpec MOS - MIRI Imaging | NIRSpec MOS must be primary |
Note: for options 1, 2, and 3, either instrument can be the primary; for options 4 through 8, only one of the instruments can be the primary.